Breaking up signals in time is perhaps the most common way of decomposing, but also the one we do manually most often.
- Most common way of decomposing
- To the extent that we might not even notice it
- Fundamental to building a library / corpus / whatever
- Can have a great effect on whatever processing or analysis comes after
- Many techniques, working at different scales
- Unlikely that one will fulfil all needs, because it's a complex task